Liquid crystal display device

Abstract

An LCD device is disclosed, which is suitable for designing a pad for a fine pitch to decrease a pad and a data TCP of a data driver in size, the LCD device including: an LCD panel that includes upper and lower substrates and a liquid crystal layer; a gate driving unit that includes a plurality of gate drivers formed corresponding to an edge area of the lower substrate; a data driving unit that includes a plurality of data drivers connected with a source PCB and the lower substrate by respective data TCPs; and a plurality of data pads that are arranged at fixed intervals on the data TCP so as to transmit a data signal of the data driving unit to a data line of the LCD panel, wherein each of the data pads includes first and second parts having different bonding areas.

1. An LCD device comprising:
 an LCD panel that includes upper and lower substrates and a liquid crystal layer; 
 a gate driving unit that includes a plurality of gate drivers connected with the lower substrate; 
 a data driving unit that includes a plurality of data drivers connected with the lower substrate by respective data circuit films; 
 a plurality of first data pads that are arranged at fixed intervals on each of the data circuit films so as to transmit data signals from each of the data drivers of the LCD panel; and 
 a plurality of second data pads formed on the lower substrate of the LCD panel and connected with data lines of the lower substrate, 
 wherein each of the second data pads has a same shape with each of the first data pads, 
 wherein each of the first and second data pads includes at least two of first bonding areas having a large size and two of second bonding areas having a small size than the first bonding areas, each first bonding area and each second bonding area alternating with each other, wherein adjacent pads are inversely positioned so that the at least two first bonding areas of each pad is positioned next to the second bonding areas of the adjacent pad 
 wherein the first bonding area has one of a triangle, a diamond, an octagon and a circle shape. 
 
     
     
       2. The LCD device of  claim 1  wherein the circuit film is one of TCP, COF and FPC.